#pragma once
#include<iostream>
#include<fstream>
#include<cstdio>
#include<ctime>
#include<string>
#include<cstdarg>
#include<sys/types.h>
#include<unistd.h>
#include<pthread.h>
#include"LockGuard.hpp"
bool gIsSeve = false;
const std::string logname = "log.txt";

enum level
{
    DEBUG = 0,
    INFO,
    WARNING,
    ERROR,
    FATAL
};
void SaveFile(const std::string &filename,const std::string &message)
{
    std::ofstream out(filename,std::ios::app);
    if(!out.is_open())
    {
        return;
    }
    out<<message;
    out.close();
}

std::string LevelToString( int level)
{
    switch (level)
    {
    case DEBUG:
        return "DEBUG";
    case INFO:
        return "INFO";
    case WARNING:
        return"WARNING";
    case ERROR:
        return "ERRPR";
    case FATAL:
        return "FATAL";
    default:
        return "Unknown";
    }
}
std::string GetTimeString()
{
    time_t curr_time = time(nullptr);
    struct tm *format_time = localtime(&curr_time);
    if(format_time==nullptr)
    {
        return "None";
    }
    char time_buffer[1024];
    snprintf(time_buffer,sizeof(time_buffer),"%d-%d-%d %d:%d:%d",
                format_time->tm_year+1900,
                format_time->tm_mon+1,
                format_time->tm_mday,
                format_time->tm_hour,
                format_time->tm_min,
                format_time->tm_sec);
        return time_buffer;
}
pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
void LogMessage(std::string filename,int line,bool issave,int level,const char *format,...)
{
    std::string levelstr = LevelToString(level);
    std::string timestr = GetTimeString();
    pid_t selfid = getpid();

    char buffer[1024];
    va_list agr;
    va_start(agr,format);
    vsnprintf(buffer,sizeof(buffer),format,agr);
    va_end(agr);

    std::string message = "["+timestr+"]" + "["+levelstr+"]"+"["+std::to_string(selfid)+"]"
    +"["+filename+"]"+"["+std::to_string(line)+"]"+buffer;
    LockGuard lockguard(&lock);
    if(!issave)
    {
       std::cout<<message;
    }
    else
    {
        SaveFile(logname,message);
    }

}

#define LOG(level,format,...)                                               \
do                                                                          \
{                                                                           \
LogMessage(__FILE__,__LINE__,gIsSeve,level,format,##__VA_ARGS__);           \
}while(0)

#define EnableFile()                                                        \
do                                                                          \
{                                                                           \
        gIsSeve = true;                                                     \
} while (0)

#define EnableScreen()   \
do                        \
{                        \
    gIsSeve = false;     \
} while (0)
